CN215879790U - Metal sample preparation mould - Google Patents
Metal sample preparation mould Download PDFInfo
- Publication number
- CN215879790U CN215879790U CN202120799604.2U CN202120799604U CN215879790U CN 215879790 U CN215879790 U CN 215879790U CN 202120799604 U CN202120799604 U CN 202120799604U CN 215879790 U CN215879790 U CN 215879790U
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- China
- Prior art keywords
- die
- upper die
- lower die
- diameter
- cavity
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000002184 metal Substances 0.000 title claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 230000017525 heat dissipation Effects 0.000 claims abstract description 13
- 239000000155 melt Substances 0.000 claims abstract description 8
- 239000010453 quartz Substances 0.000 claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 239000010949 copper Substances 0.000 claims abstract description 5
- 238000000465 moulding Methods 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 8
- 238000009750 centrifugal casting Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model discloses a metal sample preparation mold, which comprises: the upper die and the lower die are copper dies, the forming gasket is a high-temperature-resistant quartz gasket, the outlines of the upper die, the lower die and the forming gasket are circular, the upper die is provided with a centrifugal pipe joint, a melt flow channel and an upper die cavity which are communicated, the lower die cavity with heat dissipation holes is arranged in the middle of the lower die, a plurality of symmetrical positioning holes are formed in the side wall of the lower die cavity, the outer diameter of the upper die head is matched with the inner diameter of the lower die cavity in size, the die head is further provided with a positioning surface corresponding to the positioning holes, the diameter of the forming gasket is the same as the diameter of an inscribed circle between the mounting positioning surfaces, the forming gasket is placed in the middle position of the lower die cavity, and the upper die head is inserted into the lower die cavity. By the mode, the surface quality of the sample can be improved, meanwhile, the consumption of gasket consumables is reduced, and the material waste is reduced.
Description
Technical Field
The utility model relates to the field of metal molds, in particular to a metal sample preparation mold.
Background
The metal components are the most basic factors influencing the structure and the performance of the metal material, so that a sample prepared when the metal components are detected needs to control the surface solidification speed of the sample so as to uniformly diffuse all components in the sample, and the test surface of the sample needs to be smooth and flawless, otherwise, the detection result is influenced. In order to control the solidification state of a metal sample, a common method at present is to add a special forming gasket in a mold to control the forming state of a detection surface of the sample during vacuum casting, and at present, the forming gasket is generally in a layered structure, one layer is a high molecular substance, the other layer is copper, and the heat dissipation speed of the surface during forming is controlled by the layered mechanism, so that an ideal sample sheet is obtained. At present, the molded gasket is imported from abroad and is a consumable material, and the molded gasket can be failed after being used for several times along with the peeling of a high polymer layer caused by heating.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problem of providing a metal sample preparation mold, which can reduce the waste of a forming gasket in sample preparation and improve the quality of a sample.
In order to solve the technical problems, the utility model adopts a technical scheme that: providing a metal specimen preparation mold for centrifugal casting molding of a specimen, the metal specimen preparation mold comprising: the upper die and the lower die are copper dies, the forming gasket is a high-temperature-resistant quartz gasket, the upper die, the lower die and the forming gasket are circular in outline, the upper die is a male die, a through melt runner is arranged in the middle of the upper die, one end of the melt runner is connected with a centrifugal pipe joint, the other end of the melt runner is connected with an upper die cavity, the lower die is a female die, a lower die cavity is arranged in the middle of the female die, heat dissipation holes are formed in the middle of the lower die cavity, a plurality of symmetrical positioning holes are formed in the side wall of the lower die cavity, the outer diameter of the die head of the upper die is matched with the inner diameter of the lower die cavity in size, the die head is further provided with a positioning surface corresponding to the positioning holes, the diameter of the forming gasket is the same as the diameter of an inscribed circle between the mounting positioning surfaces, the forming gasket is placed in the middle of the lower die cavity, and the die head of the upper die is inserted into the lower die cavity, and the upper die cavity and the upper surface of the forming gasket enclose a sample forming cavity.
In a preferred embodiment of the present invention, the diameter of the heat dissipation holes is 1/6-1/5 of the diameter of the lower mold cavity.
In a preferred embodiment of the present invention, the diameter of the positioning hole is 4-6 mm, and the distance from the center line of the positioning hole to the bottom surface of the lower mold cavity is 4-5 mm.
In a preferred embodiment of the present invention, the molding washer includes a molding surface and a back table, and the diameter of the back table is larger than that of the heat dissipation hole.
In a preferable aspect of the above preferred embodiment, the thickness of the molding pad is 4 to 5mm, and the thickness of the back table is 1/3 to 1/4 of the thickness of the molding pad.
In a preferred version of the above preferred embodiment, the back table is provided with a plurality of air ducts.
The utility model has the beneficial effects that: according to the utility model, the existing sample preparation mold structure is adjusted, and the high-temperature resistant quartz gasket is used for replacing a common consumable forming gasket to adjust the solidification speed in the sample forming process, so that on one hand, the surface friction coefficient of the high-temperature resistant quartz gasket is smaller, the flaws of the forming surface of the sample in the vacuum casting forming process can be reduced, on the other hand, the high-temperature resistant quartz gasket can be repeatedly used for a long time, and the material consumption cost is obviously reduced.
Drawings
FIG. 1 is a front view of the upper die of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure of the upper mold of the present invention in the direction of A;
FIG. 3 is a schematic view of a cross-sectional view of the upper mold of the present invention in the direction B;
FIG. 4 is a top view of the lower die of the present invention;
FIG. 5 is a schematic view of the cross-sectional structure of the lower mold of the present invention in the A direction;
FIG. 6 is a top view of the back of the formed gasket of the present invention;
FIG. 7 is a schematic cross-sectional view of a molded gasket of the present invention in the A-direction;
the parts in the drawings are numbered as follows:
1. an upper die, 2, a lower die and 3, forming a gasket;
101. a centrifugal pipe interface, 102, a melt flow channel, 103, an upper mold cavity, 104, a clamping groove, 105 and a positioning surface; .
201. Heat dissipation holes, 202, positioning holes;
301. back table, 302, airway.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.
Referring to fig. 1 and 2, an embodiment of the present invention includes:
a metal specimen preparation mold for centrifugal casting molding of a specimen, comprising: the die comprises an upper die 1, a lower die 2 and a forming gasket 3, wherein the upper die 1 and the lower die 2 are copper dies, the forming gasket 3 is a high-temperature-resistant quartz gasket, the outlines of the upper die 1, the lower die 2 and the forming gasket 3 are circular, the upper die 1 is a male die, a through melt runner 102 is arranged in the middle of the upper die 1, one end of the melt runner 102 is connected with a centrifugal pipe connector 101, the other end of the melt runner is connected with an upper die cavity 103, the lower die 2 is a female die, a lower die cavity is arranged in the middle of the female die, a heat dissipation hole 201 is arranged in the middle of the lower die cavity, 4 symmetrical positioning holes 202 are arranged on the side wall of the lower die cavity, the outer diameter of a die head of the upper die 1 is matched with the inner diameter of the lower die cavity in size, the upper die head and the lower die cavity are 40mm in size, the diameter of the upper die cavity arranged at the position of the upper die head is 32mm, and a clamping groove 104 for installing the die and two symmetrical positioning faces 105 corresponding to the positioning holes 202 are further arranged on the die head, the distance between two locating surfaces 105 is 38mm, the diameter of shaping gasket 3 is the same with the inscribed circle diameter between the symmetrical locating surface 105 also 38mm, shaping gasket 3 is placed in die cavity intermediate position down, go up mould 1 die head and insert in the die cavity down, go up die cavity 103 with the upper surface of shaping gasket 3 encloses out sample shaping cavity.
The shaping gasket 3 includes shaping face and back platform 301, the diameter of louvre 201 is 8mm, the diameter of back platform 301 is 20 mm. Can improve the supporting function of the back platform 301 on the whole formed gasket 3 and prevent the formed gasket 3 from being cracked in the centrifugal casting process
The distance between the center line of the positioning hole 202 and the bottom surface of the lower die cavity is 4mm, the thickness of the forming gasket 3 is 4.2mm, and the diameter of the positioning hole 202 is 4-6 mm. In this way, when the positioning screw is used for positioning the upper die 1 inserted into the lower die cavity, the forming gasket 3 can be positioned at the same time, so that the forming gasket 3 can be automatically aligned with the upper die cavity 103 on the die.
Wherein the thickness of the back table 301 is 1.1mm, and the thickness of the molding surface is 3.1 mm. The back table 301 is provided with criss-cross air passages 302. The structure can improve the heat dissipation speed of the back platform area, so that the heat dissipation speed of the whole forming surface tends to be consistent, the speed is more uniform when a sample melt is solidified, the surface quality of the sample during forming is improved, and surface flaws are reduced.
The installation method of the utility model is as follows: firstly, the forming gasket 3 is placed in a lower die cavity, wherein the back platform 301 covers the heat dissipation holes 201, then the upper die 1 is inserted into the lower die cavity and tightly attached to the forming gasket 3, the positioning screws are screwed in the positioning holes 202 at the moment, the upper die 1 is rotated to align the positioning surfaces 105 with the positioning holes 202, then the positioning screws are screwed for fixation to complete die assembly, the assembled die is connected with a melt centrifuge tube through a centrifuge tube interface 101, and then the die is installed on special sample making equipment by utilizing the clamping grooves 104.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. A metal specimen preparation mold for centrifugal casting molding of a specimen, comprising: the die comprises an upper die, a lower die and a forming gasket, wherein the upper die and the lower die are copper dies, the forming gasket is a high-temperature-resistant quartz gasket, the outlines of the upper die, the lower die and the forming gasket are circular, the upper die is a male die, an upper die head is provided with an upper die cavity, the bottom of the upper die is provided with a centrifugal pipe joint, the middle of the upper die is provided with a melt runner for connecting the centrifugal pipe joint and the upper die cavity, the lower die is a female die, the middle of the female die is a lower die cavity, the middle of the lower die cavity is provided with a heat dissipation hole, the side wall of the lower die cavity is provided with a plurality of symmetrical positioning holes, the outer diameter of the die head of the upper die is matched with the inner diameter of the lower die cavity in size, the die head is also provided with a positioning surface corresponding to the positioning holes, the diameter of the forming gasket is the same as the diameter of an inscribed circle between the mounting positioning surfaces, the forming gasket is placed in the middle of the lower die cavity, and the upper die head is inserted into the lower die cavity, and the upper die cavity and the upper surface of the forming gasket enclose a sample forming cavity.
2. The metal sample preparation mold of claim 1, wherein the diameter of the heat dissipation holes is 1/6-1/5 of the diameter of the lower mold cavity.
3. The metal specimen preparation mold of claim 1, wherein the diameter of the pilot hole is 4 to 6mm, and the center line of the pilot hole is 4 to 5mm from the bottom surface of the lower cavity.
4. The metal specimen preparation mold of claim 1, wherein the shaping shim comprises a shaping surface and a back platform, the back platform diameter being greater than the diameter of the heat dissipation aperture.
5. The metal specimen preparation mold of claim 4, wherein the thickness of the forming shim is 4-5 mm and the thickness of the backing table is 1/3-1/4 of the thickness of the forming shim.
6. The metal sample preparation mold of claim 4, wherein a plurality of air channels are provided on said backing table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120799604.2U CN215879790U (en) | 2021-04-19 | 2021-04-19 | Metal sample preparation mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120799604.2U CN215879790U (en) | 2021-04-19 | 2021-04-19 | Metal sample preparation mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215879790U true CN215879790U (en) | 2022-02-22 |
Family
ID=80496408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120799604.2U Expired - Fee Related CN215879790U (en) | 2021-04-19 | 2021-04-19 | Metal sample preparation mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215879790U (en) |
-
2021
- 2021-04-19 CN CN202120799604.2U patent/CN215879790U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |